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LM317 View Datasheet(PDF) - Motorola => Freescale

Part NameLM317 Motorola
Motorola => Freescale Motorola
DescriptionThree-terminal adjustible output positive voltage regulator
LM317 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
LM317
Figure 11. Ripple Rejection versus Output Voltage
100
CAdj = 10 µF
80
Without CAdj
60
40
Vin – Vout = 5 V
20
IL = 500 mA
f = 120 Hz
TJ = 25°C
0
0 5.0 10 15 20 25 30 35
Vout, OUTPUT VOLTAGE (V)
Figure 12. Ripple Rejection versus
Output Current
120
100
80
60
40 Vin = 15 V
Vout = 10 V
20 f = 120 Hz
TJ = 25°C
0
0.01
CAdj = 10 µF
Without CAdj
0.1
1.0
10
IO, OUTPUT CURRENT (A)
Figure 13. Ripple Rejection versus Frequency
100
80
IL = 500 mA
Vin = 15 V
Vout = 10 V
60
TJ = 25°C
40
20
CAdj = 10 µF
Without CAdj
0
10 100 1.0 k 10 k 100 k 1.0 M 10 M
f, FREQUENCY (Hz)
Figure 14. Output Impedance
101
100
10–1
10–2
10–3
10
Vin = 15 V
Vout = 10 V
IL = 500 mA
TJ = 25°C
Without CAdj
CAdj = 10 µF
100
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
1.0 M
Figure 15. Line Transient Response
1.5
1.0
CL = 1.0 µF;
0.5
CAdj = 10 µF
0
–0.5
–1.0
Vout = 10 V
IL = 50 mA
–1.5
TJ = 25°C
1.0
0.5
CL = 0;
Without CAdj
Vin
0
0
10
20
30
40
t, TIME (µs)
Figure 16. Load Transient Response
3.0
2.0
1.0
CL = 1.0 µF;
CAdj = 10 µF
0
–1.0
–2.0
–3.0
1.5
CL = 0;
Without CAdj
Vin = 15 V
Vout = 10 V
INL = 50 mA
TJ = 25°C
1.0
0.5
IL
0
0
10
20
30
40
t, TIME (µs)
6
MOTOROLA ANALOG IC DEVICE DATA
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